Conductor disconnecter arrangement



- Nov. 25, 1930. J." RAH counucwon DISCONNECTER ARRANGEMENT Filed May 20, 1,925

Patented Nov. 25, 1930 NETEE] STATES PATENT OFFIOE JOSEPH BAH, OF CHICAGO, ILLINOIS, ASSIG-NOB. TO G. & W. ELECTRIC SPECIALTY 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS CONDUCTOR DISCONNECTEB ARRANGEMENT Application filed May 20,

This invention relates to a conductor disconnecter arrangement.

One object of the invention is to provide a simple and efiicient conductor disconnecterar- 5 rangement in which the current conducting parts are always coveredto prevent 1n ury to one handling the disconnecter whether or not the electrical conducting parts or members are in electrical engagement with each 1 other for completing or breaking a circuit.

' Another object is to provide a device of the class described in which the various parts cooperate in an improved manner to make the device entirely safe to handle and to adapt it 15 to meet all of the requirements under service conditions.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings, in which 0 Fig. 1 is a vertical longitudinal sectional view of a single conductor disconnecter of the pothead type embodying my invention;

Fig. 2 is a top plan view of the same devlce,

and

Fig. 3 is a detail sectional view showing the movable electrical conductor moved out of engagement with an associated electrical conductor and into a position where the circuit is broken and in which position said conductor so is covered and supported.

' The various novel features of the invention will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

Referring to the figures of the drawings, it

will be noted that the invention as illustrated in connection with a single conductor disconnecter of the pothead type including an insulating bushing 10, which preferably is cemented at 11 to a support 12 having an attaching portion 18 by means of which the whole device may be connected to and supported by any suitable support, such as a pole. Supported in the insulating bushing 10 and secured thereto is an electrical conductor or contact member 14, to the upper end of which is secured a cable lug 15 for connection to an aerial cable. The electrical conductor 14 is Iii) secured in the bushing 10 between a shoulder" 16 in the bushing and the top of the bushing,

1925. Serial No. 31,539

the conductor 14 having an enlarged portion 17 between which and the shoulder 13 a gasket 18 is mounted. Another gasket 19 is interposed between the top or" the insulating bushing 10 and a nut or water by the conductor 14 is clamped in position within the bushing 10. it lock nut 21 also engages the'threaded portion 22 of the conductor 14; for locking the latter in supported position. The conductor 1% has a guide socket 23 for the reception of a combined split guide plug and auxiliary or arcing contact 24, which is formed at the upper end of a connector or electrical conductor 25, the latter of which, intermediate its ends, is provided with a collar 26. This collar, when the parts are in their normal connected position, is clamped be tween the lower part of conductor 14 and a contact member 2?, the latter of which is cemented at 28 to an insulating handle 29. The lower end or" the conductor 14:, which forms a contact member, is externally threaded at 30 and cooperates with an internally threaded portion 31 of the contact 27 so that said contact members are interlocked with respect to each other to prevent accidental disconnection between same. The guide socket 23 and guide pin 24 cooperate to guide said interlocking portions into engagement with each other. The connector 25, while it is supported in the insulating handle 29, is free within said handle to permit a relative rotation of the latter, which is necessary in connecting and disconnecting the threaded contact members mentioned. The lower end of the connecter 25 is connected to a cable lug 32, to which a ground cable, for example, maybe secured.

As shown in Fig. 1, the electric circuit is completed from the cable lug 32 through connector 25, collar 26, contact member 27, contact member forming the lower portion of conduct-or 14:, to cable lug 15. If it is desired to break the circuit, the insulating handle 29 is rotated in the proper direction for permitting withdrawal of the connecter 25. During the first-part of the separating movement, the collar 26 or" connecter 25 is withdrawn from the contact portion of conductor 14, but no arcing takes place by virtue of the fact that the circuit at such time is shed cap 20, whereu tect the connecter25 when it is withdrawn,

the same would beleft bare and be a serious hazard to one handling the device. Accordingly I have provided means which will cover the connector or conductor 25 not only when it is electrically connected to its associated parts, but also whenit is disconnected from said parts. Such protecting means takes the form of a cylindricalinsulating member or shield 34, the upperend of which has an I inwardly-extending circular. flange 35 which normally rests upon and is suspended from a collar 36 cemented or otherw se secured to the lower end of the msulating bushing 10. The lower end or the insulatenclosed ing shield 3% is provided with threaded'ring 87, into which is screwed another ring 88, having connected thereto an internal collar 39, which is adapted to support the insulating handle 29 and the connecter 25 when the latter has been drawn out of electrical as sociation with the other conducting ,mem-

bers. In this connection it will be noted that an annular member 40 is clamped between the contact member 27 and the upper end of the insulating handle '29 and is adapted to rest'upon. the collar 39, as shown in Fig. 3. In the positionthus shown, the contactmember 27, connecter 25 and insulating handle 29. are supported by and suspended fronithe shield 34. By an-inspection of Fig. 3, it is seen that the live parts are'com'pletely for protecting one. handling the dev ce.

l hil e the insulating shield 34 normally is suspended from the bushing 10,

is telescopically arranged with respect to said shield said bushing, and'may be moved upx'vardly ,with respect thereto to permit ready access to the insulating handle 29, which is used in connecting and disconnecting the electrical conductors. In this way the electrical conductors not'only are completely housed at alltimes, whether connected or disconnected, but the parts are so arranged to makeconnection and disconnection a simple matter.

I claim: 7 V 7 1. In ardevice of the class described, the

combination of a plurality of electrical conductors adapted to be electrically connected and disconnected, two'protectin g members for coveringsaid conductors when connected, and athird protectlng member associated with both of said conductors for covering at least'one of said conductors when said con ductors are disconnected. v

2. In a device of the classdesc'ribed, the

combination of a plurality of electrical conductors adapted to beelectrically connected and disconnected, two protecting members for covering said conductors when connected,

and an associated telescopically arranged protecting member for covering one of said conductors andmovable-with respect to said conductors when it is movedout of electrical association with another of said conductors.

3. In a device of the class described, the combination of a plurality of conductors adapted to be electrically connected and disconnected, protecting means for covering said conductors when connected, and associated protecting means suspended from the first protecting means and associated with V the second protecting means for covering one of said conductors when it is electr cally dis connected from another .01 said conductors.

4C. In a device of the'class described, the

combination of a plurality of electrical conductors adapted to be electrically. connected and disconnected, an insulating bushing enclosing one of said conductors, and another insulating member movable with respect to I and depending from said insulating bushwhen said conductors are disconnected.

5. In a device of the class described, the combination of a plurality of electrical conductors adapted to be electrically connected and disconnectechfa bushing enclosingone of said conductors andhaving a supporting. collar, and anotherinsulating member sus-. pended from said supporting collar and adapted to enclose another of said conductor when said conductors are electrically disconnected and said last named conductor s .removed from said first named bushing.

6. In a device of theclass described, the combination of a plurality ofelectrical conductors adapted" to be electrically connected and disconnected, a bushing enclosingone of of said conductors and having a supporting collar, another insulating member suspended -from said supportingcollar and adapted to enclose another of said conductors when said conductors are electrically disconnected and 'saidlast named. conduct-or is removed from said first named bushing, and means whereby said second insulating member supports one of said conductors'in a given posi tion; I r

7. In a device of'the class described, the

combination of a stationary electrical 'con ductor anda movable conductor adapted to be electrically connected and disconnected,

a bushing enclosing said stationary conductor, and associated protecting means comprising two telescopically arranged members for covering the movable conductor and associated with the stationary. conductor whensaid conductors are electrically connectedand disconnected." "8. In a device of the class describedfthe' ise .ing for enclosing another or said conductors Hill combination of a stationary electrical conductor and a movable conductor adapted to be electrically connected and disconnected, a bushing enclosing said stationary conductor, and an insulating member suspended from said bushing for covering said movable conductor when said conductors are electrically disconnected to remove said movable conductor to a position remote from said first named bushing.

9. In a device of the class described, the combination of a stationary electrical coir ductor and a movable conductor adapted to be electrically connected and disconnected, an insulating bushing enclosing said stationary conductor, and an insulating member suspended from said bushing for covering said movable conductor when said conductors are electrically disconnected, said movable conductor being supported by said insulating member when said conductors are disconnected at a position remote from said first named bushing.

10. In a device of the class described, the combination of two electrical conductors adapted to be electrically connected and disconnected, an insulating bushing enclosing one of said conductors, an insulating handle mounted on another of said conductors and cooperating with said bushing to cover said conductors when they are electrically connected, and an additional protecting member associated with said conductor for covering one of said conductors when said conductors are disconnected.

11. In a device of the class described, the combination of two electrical conductors adapted to be electrically connected and disconnected, an insulating bushing enclosing one of said conductors, an insulating handle mounted on another of said conductors and cooperating with said bushing to cover said conductors when they are electrically connected, and an insulating member suspended from said bushing and adapted to house one of said conductors when said conductors are electrically disconnected.

12. In a device of the class described, the combination of two electrical conductors adapted to be electrically connected and disconnected, an insulating'bushing enclosing one of said conductors, an insulating handle mounted 011 another of said conductors and cooperating with said bushing to cover said conductors when they are electrically connected, an insulating member suspended from said bushing and adapted to house one of said conductors when said conductors are electrically disconnected, and means whereby said insulating handle and one of said con ductors are supported by and suspended from said insulating member when said conductors are disconnected.

13. In a device of the character described, the combination of conductors, one of said conductors being threaded, a threaded member associated with the other of said conductors for engagement with the threaded coir ductor to thereby effect a connection therewith, a plurality of insulating members to insulate the connection, one of said members providing a handle to impart threading movement thereto, and means associated. with said insulating members to protectingly support the connectors in disconnected position.

14. In a device of the character described. the combination of a conductor, an insulating bushing therefor, a conductor adapted to have electrical connection with said first named conductor, means cooperating with said conductors for maintaining said conductors in electrical connection, a bushing for said second named conductor for operating said first named means, and means carried by said first named bushing for supporting said second named bushing when said conductors are disconnected.

15. In a device of the character described, the combination of a conductor, an insulating bushing therefor, a conductor adapted to have electrical connection with said first named conductor, means cooperating with said conductors for maintaining said conductors in electrical connection, an insulating bushing for said second named conductor for operating said first named means, and an insulating sleeve carried by said first named bushing for supporting said second named bushing when said conductors are disconnected.

Signed at Chicago, Illinois, this 18th day of Way, 1925.

JOSEPH RAH. 

